CN113824531B - Method and device for generating coding rate, base station and storage medium - Google Patents
Method and device for generating coding rate, base station and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention provides a method and a device for generating a coding rate, a base station and a storage medium. In the technical scheme provided by the embodiment of the invention, the coding format, the channel quality indication and the initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format; generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm; according to the deceleration index, the current coding rate is set, so that the voice call quality of the user can be effectively improved.
Description
[ field of technology ]
The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for generating a coding rate, a base station, and a storage medium.
[ background Art ]
The Long Term Evolution Voice-over-Term Evolution (VoLTE) is characterized by full internet protocol (Internet Protocol, IP) type bearer, higher coding rate, lower connection delay and higher call quality. The quality of the wireless environment has a larger influence on the voice quality of VoLTE, the traditional scheme for guaranteeing the voice quality pays attention to the reference signal receiving level (RSRP) where the user is located, but the RSRP of a cell in the existing network cannot completely represent the quality of the wireless environment where the user is located, and the problem that the voice call quality of the VoLTE is poor due to interference, load and the like is likely to occur in a region with good network coverage, so that the voice call quality of the user cannot be effectively improved in the traditional scheme.
[ invention ]
In view of this, the embodiments of the present invention provide a method, an apparatus, a base station, and a storage medium for generating a coding rate, which can effectively improve the voice call quality of a user.
In one aspect, an embodiment of the present invention provides a method for generating a coding rate, where the method includes:
acquiring a coding format, a channel quality indication and an initial block error rate;
generating a quality index according to the channel quality indication and the initial block error rate;
matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format;
generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm;
and setting the current coding rate according to the deceleration index.
Optionally, the channel quality indication is ranked multiple; generating a quality index according to the channel quality indication and the initial block error rate, including:
calculating the channel quality ratio of a specified grade in the multiple grades according to the channel quality indications of the multiple grades;
and generating a quality index according to the channel quality duty ratio, the initial block error rate, the set first weight and the set second weight.
Optionally, before the corresponding matching gear is matched according to the quality index through the generated matching gear table corresponding to the coding format, the method further includes:
obtaining a standard gear table, wherein the standard gear table comprises code rate gear marks, a standard duty ratio interval and a standard block error rate interval;
generating a standard quality index according to the right value of the standard duty ratio interval, the right value of the standard block error rate interval, the first weight and the second weight;
rounding the standard quality index to generate a rounding index;
and generating a matching gear table corresponding to the coding format according to the code rate gear mark, the standard quality index, the rounding index and the set matching gear.
Optionally, the standard gear table includes a standard code rate, and before generating the downshift index according to the matched gear and the set configuration gear by using a downshift threshold configuration algorithm, the method further includes:
acquiring code rate gear marks corresponding to the matched gears;
according to the code rate gear mark, matching the standard coding rate from the standard gear table;
judging whether the standard coding rate is the maximum coding rate or not;
if the standard code rate is judged not to be the maximum code rate, continuing to execute the step of generating a deceleration index according to the matched gear and the set configuration gear by a deceleration threshold configuration algorithm.
Optionally, the encoding format comprises adaptive multi-rate wideband encoding or adaptive multi-rate narrowband encoding; generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm, wherein the speed reduction index comprises the following steps:
when the encoding format comprises adaptive multi-rate wideband encoding, the method is formulated by the formulaCalculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_i is the deceleration Index of the matched gear i, and n is the configuration gear;
when the encoding format comprises adaptive multi-rate narrowband encoding, the method is formulated as followsAnd calculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_j is the deceleration Index of the matched gear j, and n is the configuration gear.
Optionally, the standard gear table includes a standard code rate; setting a current coding rate according to the deceleration index, including:
according to the deceleration index, matching a rounding index from a matching gear table;
judging whether the quality index is larger than or equal to the rounding index;
if the quality index is judged to be greater than or equal to the rounding index, matching the standard coding rate according to the deceleration index, the standard gear table and the matching gear table;
the standard coding rate is set to the current coding rate.
Optionally, the method further comprises:
if the quality index is judged to be smaller than the rounding index, continuing to execute the steps of acquiring the coding format, the channel quality index and the initial block error rate.
On the other hand, an embodiment of the present invention provides a device for generating a coding rate, including:
a first obtaining unit, configured to obtain a coding format, a channel quality indicator, and an initial block error rate;
the first generation unit is used for generating a quality index according to the channel quality indication and the initial block error rate;
the first matching unit is used for matching the corresponding matching gear according to the quality index through the generated matching gear table corresponding to the coding format;
the second generation unit is used for generating a deceleration index according to the matched gear and the set configuration gear through a deceleration threshold configuration algorithm;
and the setting unit is used for setting the current coding rate according to the deceleration index.
On the other hand, the embodiment of the invention provides a storage medium, which comprises a stored program, wherein the device where the storage medium is located is controlled to execute the generation method of the coding rate when the program runs.
In another aspect, an embodiment of the present invention provides a base station, including a memory and a processor, where the memory is configured to store information including program instructions, and the processor is configured to control execution of the program instructions, where the program instructions when loaded and executed by the processor implement the method for generating a coding rate described above.
In the scheme of the embodiment of the invention, the coding format, the channel quality indication and the initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format; generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm; according to the deceleration index, the current coding rate is set, so that the voice call quality of the user can be effectively improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for generating a coding rate according to an embodiment of the present invention;
FIG. 2 is a flowchart of another method for generating a coding rate according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for generating a coding rate according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a base station according to an embodiment of the present invention.
[ detailed description ] of the invention
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that although the terms first, second, etc. may be used in embodiments of the present invention to describe the set threshold values, these set threshold values should not be limited to these terms. These terms are only used to distinguish the set thresholds from each other. For example, a first set threshold may also be referred to as a second set threshold, and similarly, a second set threshold may also be referred to as a first set threshold, without departing from the scope of embodiments of the present invention.
Fig. 1 is a flowchart of a method for generating a coding rate according to an embodiment of the present invention, as shown in fig. 1, where the method includes:
step 101, obtaining a coding format, a channel quality indication and an initial block error rate.
Step 102, generating a quality index according to the channel quality indication and the initial block error rate.
Step 103, matching the corresponding matching gear according to the quality index through the generated matching gear table corresponding to the coding format.
Step 104, generating a deceleration index according to the matched gear and the set configuration gear through a deceleration threshold configuration algorithm.
Step 105, setting the current coding rate according to the deceleration index.
In the technical scheme provided by the embodiment of the invention, the coding format, the channel quality indication and the initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format; generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm; according to the deceleration index, the current coding rate is set, so that the voice call quality of the user can be effectively improved.
Fig. 2 is a flowchart of another method for generating a coding rate according to an embodiment of the present invention, as shown in fig. 2, where the method includes:
step 201, obtain coding format, channel quality indication (Channel Quality Indication, abbreviated as CQI) and initial block error rate (Initial Block Error Rate, abbreviated as IBLER). Wherein the level of CQI is a plurality of.
In this embodiment, the steps are performed by the base station.
In this embodiment, an adaptive multi-rate coding (Adaptive Multi Rate, abbreviated as AMR) mode is mainly adopted in a Long Term Evolution Voice-over-terminal Evolution (VoLTE) service. The AMR coding mode comprises two coding formats of Adaptive Multi-rate-Wideband (AMR-WB for short) or Adaptive Multi-rate narrowband coding (Adaptive Multi Rate-Narrow Band for short) and the AMR-NB for short. Both coding formats can support multiple speech rates, where amr_wb can use 9 speech rate levels and amr_nb can use 8 speech rate levels.
In this embodiment, the base station and the user terminal can establish a voice call when the connection party is established, and the coding format is obtained from the negotiation process between the base station and the user terminal before the connection is established.
In this embodiment, there are 16 levels of CQI from 0 to 15. Specifically, the ue measures the radio channel through a Reference Signal (RS), so as to obtain a level of the CQI, where the higher the level is, the better the channel quality, and the higher the available modulation order is, and the higher the coding rate is. The embodiment of the invention measures the current channel quality by calculating the duty ratio of the CQI 0-4 level, and the higher the duty ratio is, the worse the channel quality is.
In this embodiment, IBLER is a ratio of the number of data blocks with errors after a radio link control sublayer (RLC) layer counts cyclic redundancy check (Cyclic Redundancy Check, abbreviated as CRC) to the total number of data blocks, and in this embodiment, uplink IBLER based on a scale value (QoS Class Identifier, abbreviated as QCI) of 1 is used alone to measure the current local end service quality.
Step 202, calculating channel quality ratio of a specified grade in a plurality of grades according to CQI of the plurality of grades.
In this embodiment, the designated level may be set according to the actual situation.
As an alternative, the CQI is 16 levels, 0 level to 15 level, respectively, and the designated level is 0 level to 4 level, 5 levels in total. Counting the total quality indication of 16 grades of CQI and the partial quality indication of 0-4 grades; the partial quality indication is divided by the total quality indication, and the channel quality ratio of 0 level to 4 level among 16 levels is calculated.
Step 203, generating a quality index (CQER) according to the channel quality ratio, IBLER, the set first weight, and the set second weight.
In this embodiment, step 203 specifically includes:
step 2031, multiplying the channel quality duty ratio by a first weight, and calculating a first multiplication result.
In this embodiment, the first weight may be set according to actual situations. As an alternative, the first weight is set to 0.3.
Step 2032, multiplying IBLER by the second weight to calculate a second multiplication result.
In this embodiment, the second weight may be set according to the actual situation. As an alternative, the second weight is set to 0.7.
Step 2033, adding the first multiplication result and the second multiplication result to calculate CQER.
Step 204, a standard gear table is obtained, wherein the standard gear table comprises code rate gear marks, a standard duty ratio interval and a standard IBLER interval.
In this embodiment, the standard gear table further includes a standard code rate
In this embodiment, if the coding format is amr_wb, the current network cell channel quality ratio and IBLER distribution are matched, and the current network cell channel quality ratio and IBLER distribution are solidified into 9 experience intervals according to amr_wb; if the coding format is AMR_NB, the current network cell channel quality duty ratio and IBLER distribution are matched, and the current network cell channel quality duty ratio and IBLER distribution are solidified into 8 experience intervals according to the AMR_NB.
For example, a standard gear table in the amr_wb format is shown in table 1.
TABLE 1
For example, the standard gear table in amr_nb format is shown in table 2.
TABLE 2
Step 205, generating a standard CQER according to the right value of the standard duty cycle interval, the right value of the standard IBLER interval, the first weight and the second weight.
In this embodiment, the right value of the standard duty cycle section is the value of the right end point of the standard duty cycle section. For example, the standard duty cycle interval is (1%, 3% ], the right value is 3%.
Specifically, multiplying the right value of the standard duty ratio interval by the first weight to obtain a third multiplication result; multiplying the right value of the standard IBLER interval by the second weight to obtain a fourth multiplication result; and adding the third multiplication result and the fourth multiplication result to generate a standard CQER.
Step 206, rounding the standard CQER to generate a rounding index.
Specifically, the standard CQER is rounded to generate a rounding index.
For example: the standard CQER is 1.6%, and rounding is carried out to obtain a rounding index of 2%.
Step 207, generating a matching gear table corresponding to the coding format according to the code rate gear mark, the standard CQER, the rounding index and the set matching gear.
For example, the table of matching gear corresponding to amr_wb is generated from the contents of table 1 as shown in table 3.
TABLE 3 Table 3
| Code rate gear mark | Standard CQER | Rounding index | Matching gear |
| V0 | ≤0.65％ | 1％ | C0 |
| V1 | 1.60％ | 2％ | C1 |
| V2 | 3.30％ | 3％ | C2 |
| V4 | 5.30％ | 5％ | C3 |
| V4 | 7.00％ | 7％ | C4 |
| V5 | 8.70％ | 9％ | C5 |
| V6 | 11.10％ | 11％ | C6 |
| V7 | 13.50％ | 14％ | C7 |
| V8 | >13.50％ | 15％ | C8 |
For example, according to the contents of table 2, a matching gear table corresponding to amr_nb is generated as shown in table 4.
TABLE 4 Table 4
| Code rate gear mark | Standard CQER | Rounding index | Matching gear |
| V0 | ≤0.65％ | 1％ | C0 |
| V1 | 1.60％ | 2％ | C1 |
| V2 | 3.30％ | 3％ | C2 |
| V4 | 5.30％ | 5％ | C3 |
| V4 | 7.00％ | 7％ | C4 |
| V5 | 8.70％ | 9％ | C5 |
| V6 | 11.10％ | 11％ | C6 |
| V7 | >11.10％ | 12％ | C7 |
Step 208, matching the corresponding matching gear according to the CQER through the generated matching gear table corresponding to the coding format.
In this embodiment, each matching gear corresponds to a standard CQER interval, the value of the standard CQER is the right value of the standard CQER interval, and the left value of the standard CQER interval is the right value of the last matching gear.
For example: CQER is 3%, is less than 3.30% and is greater than 1.60%, and then the matched gear that matches is C2.
Step 209, obtaining a code rate gear mark corresponding to the matched gear.
In this embodiment, a code rate gear mark corresponding to a matching gear is obtained from a matching gear table.
For example: the matching gear table is shown in table 3, and if the matching gear is C2, the corresponding code rate gear is marked as V2.
Step 210, according to the code rate gear mark, the standard coding rate is matched from the standard gear table.
For example, the standard gear table is shown in table 1, the code rate gear is marked as V2, and the standard code rate is 19.85Kbps.
Step 211, judging whether the standard coding rate is the maximum coding rate, if so, ending the flow; if not, go to step 212.
In the step, if the standard coding rate is judged to be the maximum coding rate, the current coding rate is indicated to be the maximum, adjustment is not needed, and the process is ended; if it is determined that the standard code rate is not the maximum code rate, it indicates that the current rate needs to be adjusted, and the process continues to step 212.
As an alternative, the maximum coding rate is 23.85Kbps.
Step 212, generating a deceleration index according to the matched gear and the set configuration gear through a deceleration threshold configuration algorithm.
In this embodiment, the design principle of the speed reduction threshold configuration algorithm follows the principle of "reduce two ends, disperse as much as possible, and should be high and should not be low". Wherein, reduce both ends: the speed reduction effect is not obvious when the maximum coding rate is too close, the perception cannot be guaranteed, and the speed reduction amplitude is possibly too large when the minimum coding rate is too close, so that the perception is sacrificed. Dispersing as much as possible: the difference of different deceleration configurations can be increased, and the deceleration span and effect can be increased. The height should be high or low: and the high code rate is preferably used as much as possible in the speed reduction threshold on the basis of meeting the speed reduction configuration so as to ensure the quality.
Specifically, when the coding format is amr_wb, the following formula is used
And calculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_i is the deceleration Index of the matched gear i, and n is the configuration gear.
In this embodiment, for the amr_wb encoding mode, 1 n is equal to or less than 9-1=8, minus 1 because the maximum encoding rate is not in the alternative downshifting scheme.
Specifically, when the encoding format is amr_nb, the following formula is used
And calculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_j is the deceleration Index of the matched gear j, and n is the configuration gear.
In this embodiment, for the amr_nb coding mode, 1 n is 8-1=7, minus 1 because the maximum coding rate is not in the alternative deceleration scheme.
Further, considering that when the environmental quality and the service quality of the ue are improved, the corresponding coding rate should be improved, but in order to avoid the ping-pong operation of the speed-down and the speed-up, a certain guard interval needs to be set, an interval parameter Coffset is set, and the speed-up threshold is generated according to the interval parameter and the rounding index corresponding to the speed-down index. The interval parameter can be set according to actual conditions, and the value range is between 0 and 1. As an alternative, the Coffset is set to 30%.
Specifically, the interval parameter and the rounding index corresponding to the deceleration index are calculated through the formula ri=ci- |coffset|, and the acceleration threshold is generated. Wherein Ri is an i-th gear upshift threshold, coffset is an interval parameter, and Ci is a rounding index corresponding to a downshift index.
For example: setting configuration gear n=3 and offset=30%, according to a speed reduction threshold configuration algorithm, index_1=2, index_2=4 and index_3=6 can be calculated, so that corresponding rounding indexes c2=3%, c4=7%, c6=11%, and speed increase thresholds are r2=c2|c2=30% |=2%, r4=c4|c4|c4=30% |=5%, and r6=c6|c6=30% |=8% respectively. Then when CQER is more than or equal to 3%, the speed is reduced, namely: setting the encoding rate to 19.85Kbps; when CQER is less than or equal to 2%, the speed is increased, namely: the coding rate is set to 23.85kbps with a 1% guard interval between 2% and 3%, and no up-or down-shifting process is performed when the CQER value is between 2% and 3%, avoiding frequent calculation and configuration, resulting in increased base station and user terminal loads. Similarly, 15.85Kbps encoding downshifts are performed when CQER is greater than or equal to 7%, and 19.85Kbps downshifts are performed when CQER is less than or equal to 5%; when CQER is 11% or more, 12.65Kbps encoding downshifts are performed, and when CQER is 8% or less, 15.85Kbps upshifts are performed.
In this embodiment, two encoding formats of amr_wb and amr_nb can be distinguished, so that automatic speed limiting can be more accurately achieved, user perception is improved, the situation that a speed reduction threshold is unreasonable due to insufficient experience of an engineer can be avoided, and accuracy is further improved.
And 213, matching the rounding index from the matching gear table according to the deceleration index.
For example: if the deceleration Index index_2=4, the rounding Index corresponding to the deceleration Index is 7% from the matching gear table.
Step 214, judging whether the CQER is greater than or equal to the rounding index, if so, executing step 215; if not, go to step 201.
In this embodiment, the deceleration index includes at least one.
Specifically, when the deceleration index is one and the CQER is greater than or equal to the rounding index, step 215 is performed to perform deceleration; when the deceleration index is one and the CQER is less than the rounding index, step 201 is continued without deceleration.
When the speed-down index is two, the corresponding rounding indexes are two, and the CQER is compared with the rounding indexes, so that the CQER can be compared one by one from the low gear. If the CQER is less than the rounding index for the lower gear, step 201 is continued without a speed reduction; if CQER is greater than or equal to the rounding index of the lower gear, comparing with the rounding index of the higher gear; if the CQER is smaller than the rounding index of the higher gear, acquiring a standard coding rate corresponding to the rounding index of the lower gear, and setting the standard coding rate as the current coding rate of the user equipment; and if the CQER is greater than or equal to the rounding index of the higher gear, acquiring a standard coding rate corresponding to the rounding index of the higher gear, setting the standard coding rate as the current coding rate of the user equipment, and starting the inter-frequency switching measurement.
When the speed-down index is three or more, the corresponding rounding index is three or more, and the CQER is compared with the rounding index, so that the comparison can be performed one by one from the low gear. If the CQER is less than the rounding index of the lowest gear, the step 201 is continuously executed without reducing the speed; if CQER is greater than or equal to the rounding index of the lowest gear, comparing with the rounding index of the middle gear; if the CQER is smaller than the rounding index of the middle gear, acquiring a standard coding rate corresponding to the rounding index of the lowest gear, and setting the standard coding rate as the current coding rate of the user equipment; if the CQER is larger than or equal to the rounding index of the middle gear, comparing the rounding index with the rounding index of the highest gear, and if the CQER is smaller than the rounding index of the highest gear, acquiring a standard coding rate corresponding to the rounding index of the middle gear and setting the standard coding rate as the current coding rate of the user equipment; and if the CQER is greater than or equal to the rounding index of the highest gear, acquiring a standard coding rate corresponding to the rounding index of the highest gear, setting the standard coding rate as the current coding rate of the user equipment, and starting inter-frequency switching measurement and inter-system switching measurement.
The inter-frequency handover measurement includes switching the ue to other inter-frequency cells. Before starting the inter-frequency switching measurement, judging whether CQER is larger than an inter-frequency triggering threshold; if the CQER is judged to be larger than the inter-frequency trigger threshold, the inter-frequency switching measurement is started so as to switch the user equipment to other inter-frequency cells later, so that quality degradation is avoided, and conversation perception is improved; if the CQER is smaller than or equal to the inter-frequency trigger threshold, the inter-frequency switching measurement cannot be started. The setting of the different-frequency trigger threshold comprises various setting modes. As an alternative, the rounding index of the higher gear is automatically used as the different frequency trigger threshold.
The inter-system handover measurement includes indicating the user equipment handover to other inter-system cells. Before switching measurement of different systems is started, judging whether CQER is larger than a trigger threshold of the different systems; if the CQER is judged to be larger than the inter-system trigger threshold, the inter-system switching measurement is started so as to switch the user equipment to other inter-system cells later, so that quality degradation is avoided, and call perception is improved; if the CQER is smaller than or equal to the inter-system trigger threshold, the inter-system switching measurement cannot be started. The setting of the trigger threshold of the different system comprises various setting modes. As an alternative, the rounding index of the highest gear is automatically used as the trigger threshold of the different system.
Step 215, matching the standard coding rate according to the deceleration index, the standard gear table and the matching gear table.
For example: the standard gear table is shown in table 1, the matched gear table is shown in table 3, the deceleration Index is index_1=2, and the code rate gear mark is V2; and matching the standard coding rate of 19.85Kbps according to the code rate gear mark V2 from the standard gear table.
Step 216, setting the standard coding rate as the current coding rate.
In this embodiment, the standard coding rate is set as the coding rate, and the current coding rate is improved by adjusting, so that the call quality of the user is improved, and the perception of the user is improved.
In the technical scheme of the method for generating the coding rate, which is provided by the embodiment of the invention, the coding format, the channel quality indication and the initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format; generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm; according to the deceleration index, the current coding rate is set, so that the voice call quality of the user can be effectively improved.
Fig. 3 is a schematic structural diagram of an apparatus for generating a coding rate according to an embodiment of the present invention, where the apparatus is configured to execute the method for generating a coding rate, as shown in fig. 3, and the apparatus includes: a first acquisition unit 11, a first generation unit 12, a first matching unit 13, a second generation unit 14, and a setting unit 15.
The first acquisition unit 11 is configured to acquire a coding format, a channel quality indication, and an initial block error rate.
The first generating unit 12 is configured to generate a quality indicator according to the channel quality indicator and the initial block error rate.
The first matching unit 13 is configured to match a corresponding matching gear according to the quality index according to the generated matching gear table corresponding to the encoding format.
The second generating unit 14 is configured to generate a deceleration index according to the matching gear and the set configuration gear through a deceleration threshold configuration algorithm.
The setting unit 15 is configured to set the current encoding rate according to the deceleration index.
In the embodiment of the present invention, the first generating unit 12 is specifically configured to calculate, according to the channel quality indications of the multiple levels, a channel quality ratio of a specified level of the multiple levels; and generating a quality index according to the channel quality duty ratio, the initial block error rate, the set first weight and the set second weight.
In the embodiment of the invention, the device further comprises: a second acquisition unit 16, a third generation unit 17, a fourth generation unit 18, and a fifth generation unit 19.
The second obtaining unit 16 is configured to obtain a standard gear table, where the standard gear table includes a code rate gear mark, a standard duty cycle interval, and a standard block error rate interval.
The third generating unit 17 is configured to generate a standard quality indicator according to the right value of the standard duty cycle interval, the right value of the standard block error rate interval, the first weight, and the second weight.
The fourth generating unit 18 is configured to round the standard quality indicator to generate a rounded indicator.
The fifth generating unit 19 is configured to generate a matching gear table corresponding to the coding format according to the code rate gear mark, the standard quality index, the rounding index, and the set matching gear.
In the embodiment of the present invention, the apparatus further includes a third obtaining unit 20, a second matching unit 21, and a judging unit 22.
The third obtaining unit 20 is configured to obtain a code rate gear mark corresponding to the matching gear.
The second matching unit 21 is configured to match a standard encoding rate from a standard gear table according to the code rate gear mark.
The judging unit 22 is configured to judge whether the standard encoding rate is the maximum encoding rate; and if the standard code rate is not the maximum code rate, triggering the second generation unit 14 to continuously execute the step of generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm.
In an embodiment of the present invention, the second generating unit 14 is specifically configured to pass through the formula when the encoding format includes adaptive multi-rate wideband encodingCalculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_i is the deceleration Index of the matched gear i, and n is the configuration gear; when the coding format comprises adaptive multi-rate narrowband coding, the method is described by the formula +.>Calculating the matched gear and the configuration gear to generate a deceleration indexWherein index_j is a deceleration Index of the matching gear j, and n is a configuration gear.
In the embodiment of the present invention, the setting unit 15 is specifically configured to match the rounding index from the matching gear table according to the deceleration index; judging whether the quality index is larger than or equal to the rounding index; if the quality index is judged to be greater than or equal to the rounding index, matching the standard coding rate according to the deceleration index, the standard gear table and the matching gear table; the standard coding rate is set to the current coding rate.
In the embodiment of the present invention, the setting unit 15 is specifically further configured to trigger the first obtaining unit 11 to continue to perform the steps of obtaining the coding format, the channel quality indicator and the initial block error rate if the quality indicator is determined to be smaller than the rounding indicator.
In the scheme of the embodiment of the invention, the coding format, the channel quality indication and the initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format; generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm; according to the deceleration index, the current coding rate is set, so that the voice call quality of the user can be effectively improved.
The embodiment of the invention provides a storage medium, which comprises a stored program, wherein the program controls a device where the storage medium is located to execute the steps of the embodiment of the method for generating the encoding rate when running, and the specific description can be seen from the embodiment of the method for generating the encoding rate.
The embodiment of the invention provides a base station, which comprises a memory and a processor, wherein the memory is used for storing information comprising program instructions, the processor is used for controlling the execution of the program instructions, and when the program instructions are loaded and executed by the processor, the steps of the embodiment of the generation method of the coding rate are realized.
Fig. 4 is a schematic diagram of a base station according to an embodiment of the present invention. As shown in fig. 4, the base station 30 of this embodiment includes: the processor 31, the memory 32, and the computer program 33 stored in the memory 32 and capable of running on the processor 31, where the computer program 33 when executed by the processor 31 implements the method for generating a code rate according to the embodiment, and is not described herein in detail to avoid repetition. Alternatively, the computer program when executed by the processor 31 implements the functions of each model/unit in the generating device applied to the coding rate in the embodiment, and in order to avoid repetition, it is not described in detail herein.
The base station 30 includes, but is not limited to, a processor 31, a memory 32. It will be appreciated by those skilled in the art that fig. 4 is merely an example of a base station 30 and is not intended to limit the base station 30, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., a base station may also include input and output devices, network access devices, buses, etc.
The processor 31 may be a central processing unit (Central Proceing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital ignal Proceor, DP), application specific integrated circuits (Application pecific Integrated Circuit, AIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 32 may be an internal storage unit of the base station 30, such as a hard disk or a memory of the base station 30. The memory 32 may also be an external storage device of the base station 30, such as a plug-in hard disk, a smart Card (MC), a secure Digital (D) Card, a flash Card (flash Card) or the like, which are provided on the base station 30. Further, the memory 32 may also include both internal storage units of the base station 30 and external storage devices. The memory 32 is used to store computer programs and other programs and data required by the base station. The memory 32 may also be used to temporarily store data that has been output or is to be output.
In the several embodiments provided in the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the elements is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (9)
1. A method of generating a coding rate, the method comprising:
acquiring a coding format, a channel quality indication and an initial block error rate;
generating a quality index according to the channel quality indication and the initial block error rate; wherein the channel quality indication is rated in a plurality of levels; the generating a quality index according to the channel quality indication and the initial block error rate includes: calculating the channel quality ratio of a specified grade in a plurality of grades according to the channel quality indications of the plurality of grades; generating the quality index according to the channel quality duty ratio, the initial block error rate, the set first weight and the set second weight;
matching corresponding matching gears according to the quality indexes through the generated matching gear table corresponding to the coding format; the matching gear table is used for recording the corresponding relation between the quality index and the matching gear;
generating a speed reduction index according to the matched gear and the set configuration gear by a speed reduction threshold configuration algorithm; the speed reduction threshold configuration algorithm is an algorithm for increasing the speed reduction span;
and setting the current coding rate according to the deceleration index.
2. The method according to claim 1, further comprising, before the matching the corresponding matching gear according to the quality index by the generated matching gear table corresponding to the encoding format:
obtaining a standard gear table, wherein the standard gear table comprises code rate gear marks, standard duty ratio intervals and standard block error rate intervals of channel quality duty ratios of specified levels in the multiple levels;
generating a standard quality index according to the right value of the standard duty ratio interval, the right value of the standard block error rate interval, the first weight and the second weight;
rounding the standard quality index to generate a rounding index;
and generating a matching gear table corresponding to the coding format according to the code rate gear mark, the standard quality index, the rounding index and the set matching gear.
3. The method of claim 2, wherein the standard gear table includes a standard code rate, and further comprising, prior to said generating a downshift index from the matching gear and the set configuration gear by a downshift threshold configuration algorithm:
acquiring the code rate gear mark corresponding to the matched gear;
according to the code rate gear mark, the standard coding rate is matched from the standard gear table;
judging whether the standard coding rate is the maximum coding rate or not;
and if the standard code rate is not the maximum code rate, continuing to execute the speed reduction threshold configuration algorithm, and generating a speed reduction index according to the matched gear and the set configuration gear.
4. The method of claim 1, wherein the encoding format comprises adaptive multi-rate wideband encoding or adaptive multi-rate narrowband encoding; the step-down index is generated according to the matching gear and the set configuration gear by a step-down threshold configuration algorithm, and the step-down index comprises the following steps:
when the encoding format comprises adaptive multi-rate wideband encoding, the encoding format is encoded by the formulaCalculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_i is the deceleration Index of the matched gear i, and n is the configuration gear;
when the encoding format comprises adaptive multi-rate narrowband encoding, the method is performed by the formulaAnd calculating the matched gear and the configuration gear to generate a deceleration Index, wherein index_j is the deceleration Index of the matched gear j, and n is the configuration gear.
5. The method of claim 2, wherein the standard gear table comprises a standard code rate; the step of setting the current coding rate according to the deceleration index comprises the following steps:
according to the deceleration index, matching the rounding index from the matching gear table;
judging whether the quality index is larger than or equal to the rounding index;
if the quality index is judged to be greater than or equal to the rounding index, the standard coding rate is matched according to the deceleration index, the standard gear table and the matching gear table;
the standard coding rate is set to the current coding rate.
6. The method as recited in claim 5, further comprising:
and if the quality index is judged to be smaller than the rounding index, continuing to execute the steps of acquiring the coding format, the channel quality indication and the initial block error rate.
7. An apparatus for generating a coding rate, the apparatus comprising:
a first obtaining unit, configured to obtain a coding format, a channel quality indicator, and an initial block error rate;
the first generation unit is used for generating a quality index according to the channel quality indication and the initial block error rate; wherein the channel quality indication is rated in a plurality of levels; the generating a quality index according to the channel quality indication and the initial block error rate includes: calculating the channel quality ratio of a specified grade in a plurality of grades according to the channel quality indications of the plurality of grades; generating the quality index according to the channel quality duty ratio, the initial block error rate, the set first weight and the set second weight;
the first matching unit is used for matching the corresponding matching gear according to the quality index through the generated matching gear table corresponding to the coding format; the matching gear table is used for recording the corresponding relation between the quality index and the matching gear;
the second generation unit is used for generating a deceleration index according to the matching gear and the set configuration gear through a deceleration threshold configuration algorithm; the speed reduction threshold configuration algorithm is an algorithm for increasing the speed reduction span;
and the setting unit is used for setting the current coding rate according to the deceleration index.
8. A storage medium comprising a stored program, wherein the program, when run, controls a device in which the storage medium is located to perform the method of generating the encoding rate of any one of claims 1 to 6.
9. A base station comprising a memory for storing information including program instructions and a processor for controlling execution of the program instructions, wherein the program instructions when loaded and executed by the processor implement the method of generating a code rate according to any one of claims 1 to 6.
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